Robert Kohl

Laminar Flow Electrostatic Precipitator Having A Moving Electrode

Application

#5626652 May 6, 1997

Filed

Jun 5, 1996

Inventor

Robert E. Kohl (Ellicott City, MD) · Paul L. Feldman (Sykesville, MD) · Krishnaswamy S. Kumar (Millford, NJ)

Appl. No.

8/658717

Assignee

Environmental Elements Corporation (Baltimore, MD)

International Classification

B03C 353

U.S. Classification

96 45

Abstract

An electrostatic precipitation system (100) utilizes laminar flow of a particulate-laden gas in order to enhance the removal of sub-micron sized particulates. The system incorporates a vertically oriented housing (105) through which the gas flows downwardly therethrough to a lower outlet port (110). The gas, which may be a flue gas enters the laminar flow precipitator (102) through an inlet port (108) for passage through a charging section (104). The charging section (104) imparts a charge to the particulates carried by the flue gas. The flue gas and charged particles then flow to a collecting section (106) which is downstream and below the charging section (104). The collecting section (106) is formed by a plurality of substantially parallel tubular members, each tubular member defining a collecting passage therein. Each tubular member (118) is electrically coupled to a potential that is of opposite polarity to that imparted to the particulates, so as to attract the charged particulates to an inner surface thereof. The collected particulates are subsequently collected in a hopper (112) or reetrained in the gas stream as agglomerates for subsequent removal from the gas by a secondary filter, the gas stream then being conveyed to a stack (14) wherein the particulate-free gas can be emitted into the atmosphere.

System For Handling High Sulfur Materials

Application

#4065320 Dec 27, 1977

Filed

May 13, 1975

Inventor

Glenn A. Heian (Franklin, WI) · Robert F. Kohl (Tucson, AZ)

Appl. No.

5/576995

Assignee

Allis-Chalmers Corporation (Milwaukee, WI)

International Classification

C04B 736

U.S. Classification

106100

Abstract

Sulfur oxides have a strong affinity for free lime and readily form gypsum anhydrite. By utilizing 2200. degree. F. or higher on-gas containing reduced quantities of sulfur to the preheat zone of a material treating apparatus, large quantities of sulfur can be removed from gases evolved in the rotary kiln. Utilizing lower sulfur content on-gas to preheat will substantially improve the ability of the system to lower both sulfur and alkali levels in the clinker. Substantially free lime in the form of fines is introduced into the kiln off-gas stream to form gypsum anhydrite which is removed and has the potential to be utilized as a by-product. Essentially all of the remaining gaseous sulfur that has not been absorbed by the lime bearing dust is absorbed by the free lime in the pellets in the preheat zone of a material treating apparatus.

Method Of Reducing Noemissions In Rotary Preheater Mineral Kilns

Application

#7377773 May 27, 2008

Filed

Aug 3, 2006

Inventor

Paul S. Nolan (Fort Worth, TX) · Robert F. Kohl (Scottsdale, AZ) · Juergen Lauer (Maylene, AL) · Kerry Seitz (Southlake, TX)

Appl. No.

11/498558

Assignee

Chemical Lime Company (Fort Worth, TX)

International Classification

F27B 15/10

U.S. Classification

432 14, 110246

Abstract

This invention relates to a method to further enhance NOreduction in rotary preheater mineral kilns by coupling the temperature control and gas composition uniformity afforded by the high temperature mixing with the use of chemical reducing agents. The chemical reducing agent or agents, generally chosen from ammonia or ammonia precursors, are introduced at a specific point in the rotary preheater kiln which has as an optimal temperature window to achieve the greatest reduction of NOemissions.

Accumulation Type Roller Conveyor Drive Assembly

Application

#5105935 Apr 21, 1992

Filed

May 21, 1991

Inventor

Robert E. Kohl (Duxbury, MA)

Appl. No.

7/703418

Assignee

Jervis B. Webb Company (Farmington Hills, MI)

International Classification

B65G 1306

U.S. Classification

198781

Abstract

An accumulation type roller conveyor drive assembly comprising a sprocket and drive wheel unit rotatably supported on a tubular cylindrical bushing mounted in a housing formed by separate upper and lower portions. These housing portions have sides formed with abutting surfaces lying in a common plane passing through the axis of the bushing, with semicircular recesses engageable with peripheral end portions of the bushing, and with interfitting tabs and recesses for positioning the housing portions in assembled relation. An axle bolt, insertable through openings formed by semicircular apertures in the sides of the housing portions concentric with their respective recesses, and through a central passage in the bushing, receives a nut which when tightened, clamps the sides of the housing portions between the axle bolt head and nut and the bushing ends, thereby locking the drive assembly components in assembled condition.

Bi-Directional Accumulation Roller Conveyor

Application

#5377817 Jan 3, 1995

Filed

Dec 22, 1993

Inventor

Robert E. Kohl (Duxbury, MA)

Appl. No.

8/173774

Assignee

Jervis B. Webb Company (Farmington Hills, MI)

International Classification

B65G 1306

U.S. Classification

198781

Abstract

A bi-directional accumulation roller conveyor includes a plurality of upper load carrying rollers longitudinally coextensive with and superimposed over a plurality of lower load carrying rollers, a drive for driving the upper and lower load carrying rollers for counter rotation with respect to each other, a first clutch for drivingly engaging the upper load carrying rollers, a second clutch for drivingly engaging the lower load carrying rollers, a actuator for disengaging the clutches respectively in response to the presence of a pallet on each terminal end of the upper or lower plurality of load carrying rollers and a lifting device for transferring pallets between the upper and lower load carrying rollers thereby providing a continuous loop of conveyable pallets and managing pallet flow.

System For Handling High Sulfur Materials

Application

#4120645 Oct 17, 1978

Filed

Jan 27, 1977

Inventor

Robert F. Kohl (Tuscon, AZ) · Glenn A. Heian (Franklin, WI) · Robert F. Kohl (Tucson, AZ)

Appl. No.

5/762980

Assignee

Allis-Chalmers Corporation (Milwaukee, WI)

International Classification

F27B 702

U.S. Classification

432106

Abstract

Sulfur oxides have a strong affinity for free lime and readily form gypsum anhydrite. By utilizing 2200. degree. F or higher on-gas containing reduced quantities of sulfur to the preheat zone of a material treating apparatus, large quantities of sulfur can be removed from gases evolved in the rotary kiln. Utilizing lower sulfur content on-gas to preheat will substantially improve the ability of the system to lower both sulfur and alkali levels in the clinker. Substantially free lime in the form of fines is introduced into the kiln off-gas stream to form gypsum anhydrite which is removed and has the potential to be utilized as a by-product. Essentially all of the remaining gaseous sulfur that has not been absorbed by the lime bearing dust is absorbed by the free lime in the pellets in the preheat zone of a material treating apparatus.